Q3 SCIENCE 7 REVIEW

If a 10 N force and a 5 N force are acting on an object in the same direction, what is the net force?

• 5 N

• 10 N

• 15 N

• 50 N

Which of the following would result in a net force of zero on an object?

• A 10 N force to the right and a 5 N force to the left

• A 10 N force to the right and a 10 N force to the left

• A 5 N force to the right and a 10 N force to the right

• A 10 N force to the left and a 5 N force to the right

In a tug-of-war, if both teams pull with equal forces in opposite directions, what is the net force acting on the rope?

• The rope will move to the left

• The rope will move to the right

• The rope will experience an acceleration

• The net force will be zero, and the rope will remain stationary

What is the purpose of a free body diagram (FBD)?

• To illustrate the motion of an object

• To calculate the velocity of an object

• To represent all the forces acting on an object

• To show the relationship between mass and acceleration

In a free body diagram, what does each arrow represent?

• The velocity of the object

• The displacement of the object

• The object's position at different times

• The forces acting on the object, with the length representing magnitude and the direction representing the force's direction

What happens when the forces acting on an object are balanced?

• The object accelerates

• The object changes direction

• The object experiences increasing speed

• The object remains at rest or moves with constant velocity

Which of the following scenarios is an example of unbalanced forces?

• A book resting on a table

• A car moving at constant speed on a flat road

• A satellite orbiting the Earth with constant velocity

• A person pushing a box with more force than friction opposes

If a 10 N force acts on an object to the right, and a 10 N force acts on the object to the left, what is the net force?

• 0 N

• 10 N to the left

• 10 N to the right

• 20 N to the right

What is the definition of motion?

• The state of rest of an object

• The force applied on an object

• The speed of an object at a given time

• The change in position of an object with respect to time

Which type of motion involves a constant speed along a straight path?

• Accelerated motion

• Circular motion

• Oscillatory motion

• Uniform motion